import { useIntersectionObserver } from '@vueuse/core'

// 定义懒加载插件
export const lazyPlugin = {
  install(app) {
    // 懒加载指令逻辑
    app.directive('img-lazy', {
    mounted(el, binding) {
      const { stop } = useIntersectionObserver(
        el,
        ([{ isIntersecting }]) => {
          if(isIntersecting) {
            // 进入视口区域
            el.src = binding.value
            stop()
          }
        }
      )
    }
  })
  }
}